EAST AFRICAN ODONATA, COLLECTED BY DOCTOR W. L. ABBOTT. By Philip P. Calvert. The Odonata collected iu Zanzibar and the Kilimanjaro region in 1889-90 by Dr. W. L. Abbott were sent by him to the United States National Museum at Washington in two lots. Thanks to the kindness of the authorities of the Museum, I have had the opportunity of study-ing them, with the results set forth in the following pages. The total number of specimens is sixty-four, representing thirteen species. Of these, four species are here described as new, viz: Orthetrum trun-catnm, 0. ahhotti, Acschna rileyi, and Disparoneura, ahbotti. Three other species, Trithemis/Hrnigaria, Rambur, Orthetrum brachUile, Beau-vois, and Anax rutherfordi, McLachlan, have hitherto been known only by brief descrii^tions or by but one sex ; the present opportunity has been seized to render our knowledge of them more complete. PANTALA FLAVESCENS, Fabricius. Lihellula flavescens, Fabhicius, Eut. Syst. Suppl., p. 285, 1798. Paniala flavescem, Haoen, Syn. Neur. N. Aiuer.. p. 142, 1861; Stett. Eut. Zeit., XXVIII, p. 215, 1867; Proc. Bost. Soc. Nat. Hist., XVIIl, p. 63, 1875.— Kikby, Cat. Odon., p. 1, 1890. Lihelhda viridula, Beauvois, Ins. Afr. Amer., p. 69, Nevr., pi. in, fig. 4, 1805-1821. — Kambur, Nevropt., p. 38, 1842. Lihelhda analis et terminaUs, Burmeister, Haiulb. Eut., II, p. 852, 1839. LibcUuIa SparshaUii, Curtis, Guide, p. 162.— Selys, Monog. Lib. Eur., p. 36, 1840; Revue Odon. Eur., p. 322, 1850. Locality. — One female in the National Museum collection, from Kili-manjaro. This species, as is well known, is distributed all over the world, except Europe. TRAMEA LIMBATA, Desjardins. LibelhtJa limbata, Desjardins, Rapport Soc. Maurice, I (1832); ISull. Soe. Eut. France, IV, p. 4, 1835. Tramea limbata, Kirby, Trans. Zool. Soc. Loud., XII, p. 318, 1889; Cat. Odou., p. 4, 1890. Lihellula mauriciana, Rambur, N6vr., p. 34, 1812. One female in the National Museum collection, obtained at the Sey-chelles by Dr. W. L. Abbott, belongs, I believe, to this species. It differs Proceediugs of the Uniteil Statt-.s National Museum, Yol. XYIII— Xo. 104fi. 121
BioStor
